Dehumidifying device, dehumidification control method and storage medium

The invention provides a dehumidifying device, a dehumidification control method and a storage medium. The dehumidifying device comprises a processor, a pressure-increased expansion assembly and an air-liquid separator, wherein the pressure-increased expansion assembly is electrically connected with the processor, and comprises an air outlet end, an air return end, a low temperature output end anda high-temperature input end, and the air outlet end and the air return end are communicated with a room; the air-liquid separator is arranged on a pipeline between the low-temperature output end andthe high-temperature input end. The processor is further used for executing an instruction so as to executing the following steps that the pressure-increased expansion assembly is controlled to run,so that air in the room is introduced into the pressure-increased expansion assembly through the air return end; after pressure reduction and temperature reduction, the air is led into the air-liquidseparator, so that condensed